CPB. Doc. N MO-0279-ING MODBUS/PROFIBUS DP CONVERTER TYPE CPB. Microener - Copyright 2010 Date Rev. 0

Transcription

1 MODBUS/PROFIBUS DP CONVERTER TYPE CPB Microener - Copyright 2010 Date Rev. 0

2 INDEX 1. GENERAL 3 2. CPB SET 4 3. INSTALLATION CPB CONVERTER ASSEMBLING PROFIBUS TERMINAL DESCRIPTION CPB CONNECTION TO N-DIN SIGNALIZATION REQUIREMENTS FOR TERMINAL CONNECTION SETTING OF TRANSMISSION PARAMETERS IN MODBUS AND PROFIBUS DP NETWORKS SETTING OF THE TRANSMISSION PARAMETRIC DATA IN PROFIBUS DP 8 4. DESCRIPTION OF THE CPB OPERATION CPB WORKING FUNCTIONS FEATURES 9 5. TECHNICAL DATA 9 6. MAINTENANCE WASTE DISPOSAL OF ELECTRICAL & ELECTRONIC EQUIPMENT 10 Microener - Copyright 2010 Date Rev. 0 Pag. 2 of 10

3 1. GENERAL The CPB converter enables the connection of Microelettrica Scientifica protective relays, which have a MODBUS-RTU protocol serial communication output, into an industrial network with PROFIBUS-DP protocol serial communication. The basic CPB converter function is to make available to the Profibus-DP network the Modbus Data Base of the connected device. The CPB converter works as a MASTER on the Modbus side and as a SLAVE on the Profibus-DP side. The scheme below shows the structure of the Profibus/Modbus Network using the CPB converter together with a protective relay. Fig.1: Block scheme of the measuring system with the CPB converter. The converter is equipped with two optoisolated RS-485 interfaces; one using three terminals dedicated to the Modbus connection, the other using a 9 pin sub-d connector for the Profibus connection. Microener - Copyright 2010 Date Rev. 0 Pag. 3 of 10

4 2. CPB set The CPB set includes: CPB converter User s manual CD with : Configuration file RELAY.gsd - Modbus/Profibus Mapping file RELAY.txt 3. Installation CPB converter assembling The CPB converter is to be plug-in on the N-DIN RMB base. Microener - Copyright 2010 Date Rev. 0 Pag. 4 of 10

5 3.2 - ProfiBus Terminal description. Table 1. Description of terminals of the connector DB9. Terminal Terminal description 3 B Line P (RxD/TxD) of the PROFIBUS DP interface 4 STER Control line (CNTR) of the PROFIBUS DP interface 5 GND Line GND of the PROFIBUS DP interface 8 A Line N (RxD/TxD) of the PROFIBUS DP interface CPB Connection to N-DIN Wiring diagram cable RMB (N-DIN) to CPB Microener - Copyright 2010 Date Rev. 0 Pag. 5 of 10

6 3.4 - Signalization There are two Leds on the front plate: Yellow (COM) On = Communicating Off = Out of Communication Flashing = Wrong master configuration Green (PWR) On = Power supply on Off = Power supply off Reset CPB unit Reset DP ADDRESS CPB unit Address Setting, power-on or after reset. RS485 to RMB Connection to N-DIN base (RMB) RS485 to FFP Connection to N-DIN FFP module ProfiBus-DP ProfiBus Port Microener - Copyright 2010 Date Rev. 0 Pag. 6 of 10

7 3.5 - Requirements for terminal connection In order to obtain proper Electromagnetic compatibility: - Use twisted shielded cables for connecting the communication interface. - Don t lay the communication cable near power cables Setting of transmission parameters in MODBUS and PROFIBUS DP networks Setting of the device address in the PROFIBUS DP network In the Profibus-DP network the CPB converter works as a slave device. The range of addresses for the slave device is Before connecting the converter to the network, the device address in the PROFIBUS DP network must be set. Set the dip-switch as to obtain the required numbers: Node = (1 127) Example: Set Address 25 = Microener - Copyright 2010 Date Rev. 0 Pag. 7 of 10

8 3.7 - Setting of the transmission parametric data in PROFIBUS DP The CPB converter works as a MASTER on the Modbus side and as a SLAVE on the Profibus-DP side. The communication parameter between N-DIN (RMB) 9600bps, N,8,1 See N-DIN Operation Manual (Main Comm Par) At power-on or during further reconfiguration, the parametric data concerning the operation in the Modbus network are transmitted to the converter through the Master Profibus-DP. The converter configuration is included in the RELAY.gsd file Configuration of the CPB converter to co-operate with the co-operating device The read-out operation parameters (addresses of registers and number of variables), whose values will be transmitted to the Profibus-DP network, are given as parametric data defined in the RELAY.gsd file. The maximum number of variables to read are 64 (Input Word). One Output word is available for write operation Render result registers available to the Profibus-DP network The Data values (content of 16-bit registers) are available to the Profibus-DP in a sequence according to the registers recording sequence defined in the parametric data Format of diagnostic data Diagnostic data give to the user the signalization of the CPB converter data exchange failure. This CPB communication failure can be due to: - lack of connection with the Modbus bus, - lack of power supply to the co-operating device (RELAY), - damage of the co-operating device (RELAY). When one of the above situation takes place, the CPB converter signals error into first Profibus Input Word by setting the high order bit to 1. Usually this input word is reserved to get the node address of slave device(low byte). When the input buffer length in the RELAY.gsd file (User_Prm_Data_Len=57)differences from 57, the error PRM FAULT is signaled. I When the input buffer length in the RELAY.gsd file is not declared or its length exceeds the value 244, the diagnostic configuration error CFG FAULT is signaled. Other parameters are set according to the PROFIBUS DP device description standard EN Vol 2 Working with PROFIBUS-DP, Device Description Data Files GSD. The RELAY.gsd configuration file allowing the CPB converter to co-operate with the relay, with described configuration fields, is described in Addendum file. Microener - Copyright 2010 Date Rev. 0 Pag. 8 of 10

9 4. Description of the CPB operation CPB working functions The CPB acts as gateway from a Slave device Modbus and a Profibus Master system. During its operation executes the cyclic configured Modbus requests and stores data received from the slave in an internal memory buffer and makes data available as inputs to Profibus-DP master. In the other way receives the output changes from Profibus master and performs the Modbus write operation Features automatic control of the data transmission direction. reach of the transmission, up to 1200 m. indicators of the incorrect working states. network supply. easy assembling and exploitation. 5. Technical data CE EMC Compatibility (EN EN ) Electromagnetic emission EN55022 industrial environment Radiated electromagnetic field immunity test IEC level MHz 10V/m ENV MHz/200Hz 10V/m Transmission data MODBUS baud rate 9600 parity N data format [bit] 8 stop bits 1 Transmission data PROFIBUS baud rate[bit/s] 9.6 k [bit/s] 1200m 19.2 k [bit/s] 1200m k [bit/s] 1000m k [bit/s] 1000m k [bit/s] 1000m 500 k [bit/s] 400m 1.5 M [bit/s] 100m Power consumption Self powered to N-DIN Storage and transport ambient temperature -10 C / +55 C Microener - Copyright 2010 Date Rev. 0 Pag. 9 of 10

10 6. MAINTENANCE No maintenance is required. In case of malfunctioning please contact Microelettrica Scientifica Service or the local Authorised Dealer mentioning the Serial N reported in the label on relay enclosure. Microelettrica Scientifica S.p.A. policy is one of continuous improvement and we reserve the right to make changes in design and specification of any products as engineering advances or necessity requires and revise the above specification without notice Waste Disposal of Electrical & Electronic Equipment (Applicable throughout the European Union and other European countries with separate collection program). This product should not be treated as household waste when you wish dispose of it. Instead, it should be handed over to an applicable collection point for the recycling of electrical and electronic equipment. By ensuring this product is disposed of correctly, you will help prevent potential negative consequence to the environment and human health, which could otherwise be caused by inappropriate disposal of this product. The recycling of materials will help to conserve natural resource. Quartier du Pavé Neuf,49 rue de l Université Noisy le Grand - France Tél : Fax : [email protected] Les cotes, schémas et spécifications n engagent Microener qu après confirmation Microener - Copyright 2010 Date Rev. 0 Pag. 10 of 10